316 THE VETERINARY SCIENCE. 



PART IV. 



DISEASES AND TREATMENT OF SHEEP, 

 PIGS, DOGS AND POULTRY. 



CHAPTER I. 



DISEASES AND TREATMENT OF SHEEP. 



Sheep belong- to the class of animals called ruminants, which 



means animals that chew their cud. In regard to the structure of 



sheep, they are on the same principle as that of cattle, only 



smaller. The skin of the sheep is different to that of the ox, as 



it grows wool instead of hair, and has in the skin numerous small 



glands which secrete oil, which is used to lubricate and soften 



the wool. 



COLD IN THE HEAD (SIMPLE CATARRH). 



This is a common disease in sheep, and consists of an in- 

 flamed state of the lining' of the nose and the cavities of the head. 



Causes. — From being left out in a cold rain and exposure to 

 cold weather, and is mostly seen in the fall and spring, during the 

 seasons of cold rains. It is often seen during washing- and 

 shearing time. 



Symptoms. — There is a dischargfe from the nose, and the 

 affected sheep keeps snuffling, sneezing and coughing; does 

 not feed well and seems very dull. 



Treatment. — The treatment is very simple in most cases. 

 Keep thfe sheep dry, warm and clean, and this often effects a cure 

 in a few days without any medicine ; but if the disease does 

 not pass off, give the following mixture: 



